Alcatraz Penitentiary - 2.604" Showcase Concrete bags Above: Artist's Concept of the

Above: Artist's Concept of the Tethys Sea during the Cretaceous (Source: Mini Museum)

88" polished Phylloceras fossil from Madagascar

was recovered in Northwest Africa in the year 2000

it will be replaced by a 29-Specimen version

Please Note: Foram sand beaches contain many billions of foraminifera remains along with other debris one is likely to find on many beaches

Alcatraz Penitentiary - 2.604" Showcase Concrete bags Above: Artist's Concept of theThis is an authentic piece of concrete from Alcatraz Penitentiary. Yes, an actual piece of The Rock!" This particular specimen measures 2. 604" along the widest point. This specimen, from the famous Alcatraz Island, saw some 1,500 prisoners pass by it during the prison's operation. A certificate of authenticity is included.